D-ring attachment device



FIG. 1 is a perspective view showing the new design;

FIG. 2 is a front view thereof, the back view being the same as thefront view;

FIG. 3 is side view thereof, the opposite side being the same as thisside;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is top view thereof.

The broken line showing a bottom member is for illustrative purposesonly and forms no part of the claimed design.

The ornamental design for a D-ring attachment device, as shown anddescribed.